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8,15-Ethano-6H-dibenzo[c,n]benz[a]anthracene-6,18-dione,1,2,3,4,4a,7,7a,8,9,10,10a,11,12,13,14,14a,15,16,17,17a-eicosahydro-7,19-dihydroxy-1,1,4a,11,11,14a-hexamethyl-7,19-bis(1-methylethyl)-,(4aS,7R, related products: